Range hood not working
If your range hood will not turn on, the motor only hums, the fan spins slowly, or the buttons do not respond, the usual causes are a failed start capacitor, worn bearings, speed-control board fault, button-panel failure, or overheating from clogged filters. We diagnose the motor and controls at component level in our service centre; often a capacitor or bearing replacement is enough.
A range hood is one of the most important kitchen appliances — it removes grease, steam and unpleasant odours, protecting furniture, walls and indoor air quality. When the hood stops working, the kitchen environment deteriorates rapidly. We diagnose motors, capacitors, control boards, timer circuits and lighting circuits at component level. We always agree on the cost before starting work, and if you decide not to proceed we return the appliance with no obligation. All repairs carry a 3-month warranty.
Likely causes
- Motor start capacitor failure — The single-phase induction motor requires a start capacitor to create a rotating magnetic field. If the capacitor has lost capacitance or failed open, the motor cannot spin up — you hear a quiet hum but the fan does not start. Capacitor replacement usually resolves the issue.
- Fan bearing worn out — Prolonged operation in a greasy environment makes bearing lubricant viscous and dry. The fan begins rotating with a loud knocking or squealing noise, and may eventually seize completely. Bearing replacement restores quiet, smooth operation.
- Speed controller board failure — In the electronic speed controller, the TRIAC or thyristor can burn out due to a voltage spike or overheating. The hood may only work on one speed, ignore speed changes or fail to operate at all. Board diagnostics and component replacement are needed.
- Light/button panel failure — On mechanical hoods, the button panel oxidises over time from grease and moisture. Contacts stop conducting — the light and motor will not turn on. On touch-button models, the capacitive sensor board may fail.
- Motor winding burnout — If the motor runs for extended periods under excessive load (blocked duct, dirty filters), the windings can overheat and burn out. The motor stops completely and there is a noticeable burning smell. Motor replacement is required.
Try this first
- Check that the hood is connected to the mains — on some models the plug is hidden behind a cabinet and may have been pulled out accidentally.
- Clean or replace the grease filters — fully clogged metal or carbon filters can place excessive load on the motor.
- Try turning on only the light — if the light works but the motor does not, the problem is in the motor or capacitor, not the power supply.
- Listen for a hum when you press the button — humming without spinning points to a capacitor or bearing issue.
When to bring it in
If the hood still does not work after cleaning the filters, checking the power supply and testing the buttons — bring it to our service centre. It is especially important to seek help if the motor hums but does not spin, if you smell burning, or if the hood only operates on one speed. We will diagnose the motor, capacitor and control board, fix the fault and return the hood with a 3-month warranty.
Fast on-site diagnostics. Warranty: 3 months.
Brands we repair
FAQ
Why customers choose SATER
- Built-in and freestanding appliances. We repair both — built-in ovens, hobs and microwaves.
- Ovens, cookers, microwaves, coffee machines — all under one roof. One service centre for all your kitchen and household appliances.
- Original and compatible spare parts. We use OEM parts or proven alternatives — depending on the task and budget.
- 30+ years of experience. The service centre has been operating since 1993.
- We serve all of Latvia. Electronics service centre in Riga — we accept devices from anywhere in the country.